PKI Vocab 1
One key both encrypts and decrypts. Fast enough for bulk data, but both ends must already share the key.
Symmetric encryption
The extension listing the DNS names and IP addresses a certificate is valid for.
Subject Alternative Name
This TCP flag is used to initiate a new connection between two hosts.
What is SYN?
This protocol is commonly used in electric utilities to communicate between SCADA masters and field devices such as RTUs.
What is DNP3?
In 2019, this beauty YouTuber lost millions of subscribers after Tati Westbrook uploaded her viral "Bye Sister" video.
Who is James Charles?
Operations built on a linked pair of keys, where what one key does only the other can undo or verify.
Asymmetric cryptography
The ordered set of certificates from an end-entity certificate up to a trust anchor.
Certificate chain
TCP uses this three-step process to establish a reliable connection before data is exchanged.
What is the Three-Way Handshake?
Originally developed by Modicon in 1979, this protocol remains one of the most widely used industrial communication standards.
What is Modbus?
In 2020 and beyond, this YouTuber became known for extensive investigations into cryptocurrency scams, including his public feud with Logan Paul over CryptoZoo.
Who is Coffeezilla?
A value computed over a digest using a private key, verifiable by anyone holding the public key. Proves integrity and possession.
Digital signature
An entity that validates requests and signs certificates according to a published policy, and publishes revocation information.
Certificate authority
What is Flow Control (or the Receive Window)?
This TCP mechanism ensures a sender does not overwhelm a receiver with more data than it can handle.
EtherNet/IP uses this industrial protocol suite developed by ODVA to organize devices and exchange data.
What is CIP (Common Industrial Protocol)?
For much of the 2010s, fans intensely speculated about the relationship between these two YouTubers, creating one of the platform's longest-running fandom controversies before the pair publicly confirmed their relationship.
Who are Dan and Phil?
A signed data structure binding an identity to a public key, carrying an issuer, serial number, validity window, and extensions. RFC 5280.
X.509 certificate
A PKCS#10 structure carrying a public key and the requested identity attributes, signed by the matching private key. Never contains that key.
Certificate signing request
When TCP detects a missing segment, it uses this process to send the lost data again.
What is Retransmission?
Utilities use this protocol to exchange real-time grid data, status information, and telemetry between control centers.
What is ICCP (Inter-Control Center Communications Protocol)?
In 2023, this creator was criticized after posting images of fellow YouTuber Jacksfilms' residence online, leading to allegations of doxxing.
Who is SSSniperWolf?
The set of trust anchors a platform or application accepts
Trust store
The people, policies, processes, hardware, and software that issue, distribute, manage, and revoke certificates and keys.
Public key infrastructure
During a normal TCP session termination, both hosts exchange this flag to gracefully close the connection.
What is FIN?
This IEC 61850 service allows protection relays within a substation to exchange high-speed event messages without going through a SCADA master.
IEC 61850
Beginning in 2024, controversy surrounded this YouTube megastar regarding competition show practices, former employee allegations, and the handling of Beast Games productions.
Who is MrBeast?